(function () {
    var a = "asdasd";
    var arr = [0, 1, 2, 12, 20, 1, 2, 0, 2, 3, 4];
    var arrs = [];
    var i = 0;
    for (i; i < arr.length; i++) {
        if (arrs.indexOf(arr[i]) == -1) {
            arrs.push(arr[i]);
        }
    }
    console.log(arrs);
    var b = 10;
    var k = 1;
    var scs = 1;
    for (k; k <= b; k++) {
        scs *= k;
    }
    console.log(scs);
})();
